One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,8)(3,5,4,7)(9,10,12,13)(11,14,15,16)(18,21)(19,23)(25,26,30,29)(27,28,32,31)(1,3,6,4)(2,7,8,5)(10,13)(11,15)(19,23)(22,24)(25,27,30,32)(26,31,29,28)(2,8)(5,7)(9,11)(10,14)(12,15)(13,16)(17,18)(19,22)(20,21)(23,24)(25,28,30,31)(26,27,29,32)(1,4,6,3)(2,5,8,7)(9,11)(10,14)(12,15)(13,16)(17,19)(18,22)(20,23)(21,24)(25,29,30,26)(27,28,32,31)(1,5)(2,4)(3,8)(6,7)(9,10)(11,16)(12,13)(14,15)(17,18)(19,22)(20,21)(23,24)(25,28)(26,32)(27,29)(30,31) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.